Lovell Field to Seattle-Tacoma International CHA → SEA
1,812 nautical miles (2,085 statute miles) northwest on a straight line, true course 306°, about 311° magnetic at the departure end (variation 5W). At 120 knots that is 15 h 21 min at the quickest height in today's winds (4,500 ft, a 2-knot headwind), arriving about 3:21 pm PDT (22:21 UTC). For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 1 flights in the DOT's last twelve reported months, the route's page.
The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words
Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.
Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 119 nm of the route.
- AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 418 to 906 nm out.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 836 to 1493 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 966 to 1205 nm out.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 995 to 1185 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1035 to 1234 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1085 to 1274 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1135 to 1603 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1284 to 1692 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1354 to 1543 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 179 nm of the route.
A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from CHA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 UTC · at 120 knots true airspeed
The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 17 forecast points nearest it (HSV, BNA, CGI, STL, COU, MKC, OMA, GRI, ONL, RAP, LND, BIL, DLN, LWS, GEG, YKM, SEA). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 220° at 13 kt | +2 kt | 15 °C | 118 kt | 15 h 21 min | 3:21 pm PDT (22:21 UTC) |
| 6,500 ft | 230° at 10 kt | +3 kt | 12 °C | 117 kt | 15 h 29 min | 3:29 pm PDT (22:29 UTC) |
| 8,500 ft | 240° at 9 kt | +4 kt | 7 °C | 116 kt | 15 h 37 min | 3:37 pm PDT (22:37 UTC) |
| 10,500 ft | 240° at 11 kt | +6 kt | 4 °C | 114 kt | 15 h 54 min | 3:54 pm PDT (22:54 UTC) |
| 12,500 ft | 240° at 13 kt | +7 kt | 1 °C | 113 kt | 16 h 02 min | 4:02 pm PDT (23:02 UTC) |
| 14,500 ft | 240° at 15 kt | +8 kt | -4 °C | 112 kt | 16 h 11 min | 4:11 pm PDT (23:11 UTC) |
| 16,500 ft | 240° at 17 kt | +9 kt | -8 °C | 111 kt | 16 h 19 min | 4:19 pm PDT (23:19 UTC) |
| 18,000 ft FL180 | 240° at 19 kt | +10 kt | -11 °C | 110 kt | 16 h 28 min | 4:28 pm PDT (23:28 UTC) |
| 24,000 ft FL240 | 240° at 23 kt | +12 kt | -22 °C | 108 kt | 16 h 47 min | 4:47 pm PDT (23:47 UTC) |
| 30,000 ft FL300 | 250° at 31 kt | +23 kt | -34 °C | 97 kt | 18 h 41 min | 6:41 pm PDT (01:41 UTC) |
| 34,000 ft FL340 | 260° at 41 kt | +34 kt | -39 °C | 86 kt | 21 h 04 min | 9:04 pm PDT (04:04 UTC) |
| 39,000 ft FL390 | 260° at 43 kt | +37 kt | -46 °C | 83 kt | 21 h 50 min | 9:50 pm PDT (04:50 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.
The forecast points as issued
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| HSV | used from 0 nm out; 69 nm from the line | 310/20 | 330/20 16° | 320/27 11° | 340/23 5° | 320/23 -7° | 340/30 -17° | 320/50 -33° | 330/61 -41° | 340/41 -50° |
| BNA | used from 50 nm out; 25 nm from the line | 310/20 | 340/20 17° | 330/24 10° | 340/22 5° | 330/26 -6° | 340/29 -18° | 330/52 -33° | 320/62 -41° | 340/45 -50° |
| CGI | used from 149 nm out; 76 nm from the line | 240/20 | 270/15 15° | 280/15 11° | 300/13 6° | 290/20 -6° | 280/24 -18° | 300/34 -32° | 300/47 -41° | 310/49 -51° |
| STL | used from 299 nm out; 45 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -51° |
| COU | used from 348 nm out; 33 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| MKC | used from 448 nm out; 54 nm from the line | 220/44 | 250/28 18° | 250/18 13° | 240/12 6° | 280/24 -6° | 240/34 -18° | 260/47 -30° | 260/51 -40° | 270/58 -50° |
| OMA | used from 548 nm out; 71 nm from the line | 220/47 | 240/33 19° | 250/18 11° | 230/17 6° | 260/29 -8° | 250/33 -19° | 250/51 -33° | 260/61 -40° | 270/62 -49° |
| GRI | used from 647 nm out; 48 nm from the line | 230/35 21° | 230/23 13° | 220/20 7° | 240/25 -8° | 240/37 -20° | 250/49 -33° | 260/57 -38° | 260/58 -47° | |
| ONL | used from 747 nm out; 48 nm from the line | 210/31 20° | 230/27 13° | 230/18 7° | 220/19 -8° | 240/26 -20° | 250/44 -35° | 270/52 -39° | 260/57 -47° | |
| RAP | used from 896 nm out; 80 nm from the line | 180/23 12° | 200/38 13° | 210/38 6° | 220/28 -10° | 230/34 -21° | 230/37 -36° | 250/52 -38° | 250/59 -46° | |
| LND | used from 1095 nm out; 129 nm from the line | 200/23 6° | 220/31 1° | 220/39 -11° | 230/39 -23° | 220/51 -28° | 220/66 -37° | 230/68 -45° | ||
| BIL | used from 1145 nm out; 91 nm from the line | 080/13 | 180/9 -2° | 210/38 0° | 220/51 -11° | 210/46 -22° | 210/58 -35° | 230/73 -39° | 230/72 -45° | |
| DLN | used from 1294 nm out; 74 nm from the line | 090/6 -6° | 240/22 -4° | 210/34 -16° | 210/62 -25° | 210/66 -34° | 210/82 -36° | 220/77 -42° | ||
| LWS | used from 1493 nm out; 69 nm from the line | 070/10 | 080/12 -2° | 030/12 -6° | 080/7 -10° | 170/34 -21° | 160/46 -32° | 200/33 -35° | 220/22 -35° | 230/18 -38° |
| GEG | used from 1643 nm out; 67 nm from the line | 080/16 -2° | 050/17 -7° | 080/9 -10° | 190/33 -21° | 180/31 -32° | L/V -35° | L/V -37° | 270/8 -40° | |
| YKM | used from 1692 nm out; 40 nm from the line | 070/10 | 040/15 -1° | 020/27 -8° | 030/25 -13° | 020/48 -20° | 010/83 -27° | 010/77 -37° | 010/49 -40° | 350/14 -41° |
| SEA | used from 1742 nm out; 45 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -43° |
The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| CHA Chattanooga, TN | departure | no report just now | 682 ft | ||||
| JWN Nashville, TN | 110 nm out, 9 nm northeast of the line, tower | no report just now | 501 ft | ||||
| PAH Paducah, KY | 209 nm out, 3 nm northwest of the line, tower | no report just now | 410 ft | ||||
| COU Columbia, MO | 408 nm out, 3 nm east of the line, tower | no report just now | 889 ft | ||||
| LNK Lincoln, NE | 647 nm out, 3 nm north of the line, tower | no report just now | 1,218 ft | ||||
| ODX Ord, NE | 757 nm out, 2 nm southwest of the line | no report just now | 2,070 ft | ||||
| GRN Gordon, NE | 916 nm out, 2 nm west of the line | no report just now | 3,562 ft | ||||
| POY Powell, WY | 1234 nm out, 5 nm east of the line | no report just now | 5,096 ft | ||||
| BZN Bozeman, MT | 1344 nm out, 20 nm northeast of the line, tower | no report just now | 4,473 ft | ||||
| LWS Lewiston, ID | 1583 nm out, 16 nm southwest of the line, tower | no report just now | 1,442 ft | ||||
| MWH Moses Lake, WA | 1692 nm out, 11 nm northeast of the line, tower | no report just now | 1,188 ft | ||||
| SEA Seattle, WA | destination | no report just now | 432 ft |
The highest airport on this list sits at 5,096 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SEA when you get there the forecast at the estimated arrival, 3:21 pm PDT (22:21 UTC)
SEA has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 22 nm from the route, 110 nm along the route · security · until 1 August · ZME
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 20 nm from the route, 408 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
Daylight
Sunset at CHA 7:10 pm EDT (23:10 UTC), at SEA 6:25 pm PDT (01:25 UTC) (civil twilight ends 6:56 pm PDT (01:56 UTC)).
Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.
Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads
Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Lovell Field, Seattle-Tacoma International.